pg: Choose the input interface from the stream's rx

Type: fix

Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I656918a417d33ec6bea30054805e03ae19c38f2d
diff --git a/src/scripts/vnet/mpls-to-dot1ad b/src/scripts/vnet/mpls-to-dot1ad
index 93d3a70..ea8418e 100644
--- a/src/scripts/vnet/mpls-to-dot1ad
+++ b/src/scripts/vnet/mpls-to-dot1ad
@@ -43,7 +43,7 @@
   name v2g
   limit 1
   node ethernet-input
-  interface pg1.12
+  interface pg1
   data {
       hex 0x000000000011005056b77c8388a80020810000210102030405060708
   }